Ritchie, D. A. (1999). American history: The modern era since 1865 (Teacher's wraparound ed., multimedia ed.). New York: Glencoe/McGraw-Hill.
Παραπομπή Chicago StyleRitchie, Donald A. American History: The Modern Era Since 1865. Teacher's wraparound ed., multimedia ed. New York: Glencoe/McGraw-Hill, 1999.
Παραπομπή MLARitchie, Donald A. American History: The Modern Era Since 1865. Teacher's wraparound ed., multimedia ed. New York: Glencoe/McGraw-Hill, 1999.
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